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Toshiba Semiconductor and Storage TCR2LN10,LF
- Part No.:
- TCR2LN10,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TCR2LN10,LF.pdf
- Description:
- IC REG LINEAR 1V 200MA 4SDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,194
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Product details
Overview
TCR2LN10,LF from Toshiba Electronic Devices & Storage Corporation is a CMOS low-dropout linear voltage regulator delivering fixed 1.0 V output at up to 200 mA, featuring ultra-low 2 μA quiescent current (max), 840 mV typical dropout at 150 mA load, and auto-discharge functionality - designed for power-sensitive portable electronics such as cellular phone baseband ICs and wearable sensor nodes.
For engineers reviewing the TCR2LN10,LF datasheet, TCR2LN10,LF pinout, TCR2LN10,LF application, or TCR2LN10,LF equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative regulators with documented functional trade-offs for battery-powered embedded systems requiring high-density board layout and sub-2 μA standby operation.
Technical Context
The TCR2LN10,LF integrates a CMOS pass transistor with on/off control logic and internal overcurrent protection. Its ultra-low quiescent current stems from optimized bias circuitry enabling stable regulation down to 1.5 V input while maintaining ±1.0% output accuracy for VOUT ≥ 1.8 V (±18 mV for 1.0 V output).
It operates across −40°C to +85°C ambient temperature, supports ceramic input/output capacitors as small as 0.1 μF, and features a dedicated CONTROL pin with 0–0.4 V OFF threshold and 1.0–5.5 V ON range, plus integrated pull-down to GND for default-off behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0 V ±18 mV (−40°C to +85°C), enabling precise core supply for 1.0 V logic domains. |
| Max Output Current | 200 mA continuous, sufficient for powering RF transceivers or microcontroller cores in compact IoT endpoints. |
| Quiescent Current | 1.0 μA typ. / 2.0 μA max at zero load, minimizing battery drain during deep-sleep modes. |
| Dropout Voltage | 840 mV typ. at 150 mA (1.0 V output), allowing operation from single-cell Li-ion (3.0 V) or dual-cell alkaline (3.2 V) sources. |
| Input Voltage Range | 1.5 V to 5.5 V, supporting wide-input battery and intermediate rail applications without external supervision. |
| Control Threshold | VCT(OFF) ≤ 0.4 V, VCT(ON) ≥ 1.0 V - compatible with standard GPIO logic levels for host-controlled power gating. |
| Auto-Discharge | Integrated 20 Ω discharge path (RSD), actively pulling VOUT to GND within microseconds after shutdown to prevent floating rails. |
Pinout & Package
TCR2LN10,LF is housed in the SDFN4 ultra-small plastic mold package (0.8 mm × 0.8 mm × 0.38 mm, 0.6 mg typical weight), with exposed center pad intended for GND connection or left open per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Accepts 1.5–5.5 V input; requires 0.1 μF ceramic capacitor placed adjacent to minimize noise coupling. |
| CONTROL | Enable/Disable Control Input | Active-high logic input with internal 0.1 μA pull-down; drives device into <1.0 μA standby mode when <0.4 V. |
| GND | Ground Reference | Primary return path for load current and bias; center pad must be connected to system GND plane for thermal and EMI performance. |
| VOUT | Regulated Output | Delivers stable 1.0 V ±18 mV; requires 0.1 μF ceramic capacitor directly at pin to ensure transient stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.0 μA max at zero load enables >10-year battery life in coin-cell-powered sensors. |
| Ceramic capacitor compatibility | Supports 0.1 μF input/output ceramics (ESR <10 Ω), eliminating bulkier tantalum or aluminum electrolytics. |
| Auto-discharge function | 20 Ω internal discharge switch clears output charge within 10 μs, preventing back-powering of upstream circuits. |
| High accuracy at low VOUT | ±18 mV tolerance at 1.0 V ensures reliable operation of 1.0 V I/O interfaces and memory subsystems. |
| Thermal robustness | Rated for −40°C to +85°C operation with junction limit of 150°C, suitable for sealed industrial enclosures. |
Applications
| Wearable Health Sensor Node | Cellular Phone Baseband IC Supply |
|---|---|
|
Use Scenario: Continuous ECG/PPG monitoring using ultra-low-power MCU and analog front-end, powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 1.0 V core regulator for ARM Cortex-M0+ MCU and ADC reference rail. Use Value: 2 μA quiescent current extends battery life beyond 3 years; 0.1 μF capacitors enable PCB area reduction by >40% vs. legacy LDOs. |
Use Scenario: Standby power domain for LTE modem baseband processor during sleep mode. IC Role / Device Role / Timing Role: Always-on 1.0 V supply enabling fast wake-up from deep-sleep states. Use Value: Auto-discharge prevents leakage-induced voltage hold-up on VOUT, ensuring clean reset sequencing and eliminating boot failures. |
| IoT Edge Node Microcontroller Core | Low-Power Bluetooth LE Module |
|
Use Scenario: Sub-GHz wireless sensor node operating on two AA alkaline cells (3.2 V nominal). IC Role / Device Role / Timing Role: Main 1.0 V regulator for 32-bit RISC-V MCU and radio transceiver digital core. Use Value: 840 mV dropout allows full 200 mA delivery until battery depletes to ~1.84 V, maximizing usable energy. |
Use Scenario: Compact BLE 5.0 module with integrated antenna, constrained by 8 mm × 8 mm PCB footprint. IC Role / Device Role / Timing Role: Secondary 1.0 V supply for BLE controller logic and flash memory interface. Use Value: 0.8 mm × 0.8 mm SDFN4 package saves 75% board area vs. standard SOT-23, enabling module miniaturization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B102MR-G | 1.0 V fixed output, 1.0 μA IQ (typ), 120 mV dropout at 100 mA, SOT-25 package (2.9 mm × 2.8 mm) | Larger footprint; lacks auto-discharge; higher dropout limits usable input range | Preferred where ultra-low IQ dominates over board area and discharge control. |
| Rohm BD3572EFJ-ME2 | 1.0 V fixed output, 2.5 μA IQ (max), 300 mV dropout at 150 mA, HTSOP-J8 package (4.0 mm × 4.0 mm) | Higher dropout and larger size; includes thermal shutdown but no auto-discharge | Chosen when thermal margin >100°C is required in high-ambient environments. |
Compared with TCR2LN10,LF, the XC6210B102MR-G offers lower typical quiescent current but sacrifices auto-discharge and occupies 10× more PCB area, while the BD3572EFJ-ME2 trades off both board space and discharge capability for enhanced thermal resilience - making TCR2LN10,LF optimal for space-constrained, fast-shutdown-critical designs.
Availability
TCR2LN10,LF is available at Aetrix Electronics and suitable for wearable health monitors, cellular phone baseband subsystems, IoT edge nodes, low-power Bluetooth modules, and industrial sensor transmitters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TCR2LN10,LF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability semiconductor components, with expertise in power management, logic, and analog ICs for consumer, industrial, and automotive markets.
The TCR2LN series targets ultra-low-power portable electronics, delivering CMOS LDOs optimized for minimal quiescent current, miniature packaging, and rapid enable/disable response - specifically addressing battery longevity and PCB density challenges in modern wearables and IoT endpoints.
FAQ
What is the output voltage tolerance of TCR2LN10,LF across temperature?
The TCR2LN10,LF specifies ±18 mV output voltage tolerance (±1.8%) over the full operating temperature range of −40°C to +85°C. This is distinct from higher-output variants (≥1.8 V), which guarantee ±1.0% accuracy. The tighter spec for higher voltages reflects process sensitivity scaling, and the 1.0 V variant's tolerance is validated per Toshiba's Electrical Characteristics table under "Output voltage" with Note 2 conditions.
Does TCR2LN10,LF require external resistors for output voltage setting?
No, TCR2LN10,LF is a fixed-output regulator with factory-trimmed 1.0 V reference. It contains no feedback resistor network and does not support adjustable output. All variants in the TCR2LN series - including TCR2LN10,LF - are delivered with preset output voltages as listed in Toshiba's Product Number table, eliminating external component count and layout complexity.
Can TCR2LN10,LF operate with input voltage below 1.5 V?
No, TCR2LN10,LF has an absolute minimum input voltage of 1.5 V per its Absolute Maximum Ratings table. Operation below this violates specification and may result in unregulated output or failure to start. The dropout voltage of 840 mV at 150 mA means the lowest functional input is 1.84 V (1.0 V + 0.84 V) - well above the 1.5 V absolute minimum, ensuring safe margin.
Is the center pad of the SDFN4 package on TCR2LN10,LF required to be soldered to GND?
The center pad of the TCR2LN10,LF's SDFN4 package is recommended to be connected to GND for optimal thermal dissipation and EMI suppression, though Toshiba's documentation states it may be left open if thermal constraints permit. When connected, it improves power dissipation capability from 300 mW (board-mounted rating) and reduces junction-to-board thermal resistance by ~30%, critical for sustained 200 mA operation.
How does the auto-discharge function behave during CONTROL pin assertion?
When the CONTROL pin voltage drops below 0.4 V (OFF state), the TCR2LN10,LF disables the pass transistor and activates its internal 20 Ω discharge switch between VOUT and GND. This discharges the output capacitor rapidly - typically clearing 90% of VOUT within 10 μs for a 0.1 μF COUT - preventing residual voltage from interfering with downstream reset sequencing or causing latch-up in adjacent circuitry.
TCR2LN10,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TCR2LN
- Package/Case:
- 4-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.38V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 2 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-SDFN (0.8x0.8)
TCR2LN10,LF FAQ
1.How can I place an order for TCR2LN10,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TCR2LN10,LF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TCR2LN10,LF reliable?
The price and inventory of TCR2LN10,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCR2LN10,LF is usually 5 days.
3.What payment methods are accepted for TCR2LN10,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCR2LN10,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCR2LN10,LF?
TCR2LN10,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCR2LN10,LF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TCR2LN10,LF?
For technical support, including TCR2LN10,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCR2LN10,LF requirements.
6.How does Aetrix verify that TCR2LN10,LF is sourced from the original manufacturer or authorized distributors?
All TCR2LN10,LF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TCR2LN10,LF meets industry standards.
7.What is the process for return or replacement of TCR2LN10,LF?
All TCR2LN10,LF units undergo pre-shipment inspection (PSI). If there is an issue with TCR2LN10,LF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TCR2LN10,LF part is unused and in its original packaging.
Return procedure for TCR2LN10,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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